几何光学中的成像规律一直是教学上的难点,掌握成像规律颇感不易。我们在教学中发现:引入u—v图,用一条直线就能确定物像之间的对应关系,可迅速地掌握错综复杂的物像对应规律。现介绍如下。一、u—v图 u—v图就是建立以u为横轴。v为纵轴的平面坐标系,如图1所示。过u—v图上的点M(f_u·f_v)作一直线l交u The principle of imaging in geometrical optics has always been a teaching difficulty, and it is not easy to grasp the law of imaging. We found in teaching: the introduction of u-v map, with a straight line can determine the correspondence between objects and objects, can quickly grasp the complex law of the corresponding objects. Now introduced as follows. First, u-v map u-v map is to establish u as the horizontal axis. v for the vertical axis of the plane coordinate system, shown in Figure 1. The point M (f_u · f_v) on the u-v map is taken as the line l and u